imperial japanese navy school graduation badge
japanese navalengineeringschool graduation badge
japanese navalschool graduation badge
japanese navalschool graduation watchfob
japanese navy school graduation watchfobnavalengineeringschool 11th regular course badge
navalengineeringschoolcommemorative badge
navalengineeringschoolcommemorativewatchfob
海軍工作学校メダル
海軍工作学校工作術練習生卒業記念メダル
海軍工作学校工作術練習生卒業記念第十一期普通科メダル
海軍工作学校第十一期普通科生卒業記念章